package com.ca.singlesignon.utils;

import org.codehaus.jackson.annotate.JsonIgnore;
import org.codehaus.jackson.map.annotate.JsonSerialize;

import java.io.Serializable;

/**
 * 用泛型构造的服务端响应对象
 * Created by Gary on 2017/7/23.
 */
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
//保证序列化Json的时候，如果value=null,那么key也会消失
public class ServerResponse<T> implements Serializable {
    private int status;
    private String msg;
    private T data;

    private ServerResponse(int status) {
        this.status = status;
    }

    private ServerResponse(int status, T data) {
        this.status = status;
        this.data = data;
    }

    private ServerResponse(int status, String msg, T data) {
        this.status = status;
        this.data = data;
        this.msg = msg;
    }

    private ServerResponse(int status, String msg) {
        this.status = status;
        this.msg = msg;

    }

    @JsonIgnore//使之不在json序列化结果当中
    public boolean isSuccess() {
        return this.status == ResponseCode.SUCCESS.getCode();
    }

    /**
     * 对外开放接口
     *
     * @return
     */
    public int getStatus() {
        return status;
    }

    public T getData() {
        return data;
    }

    public String getMsg() {
        return msg;
    }

    /**
     * 成功提示
     *
     * @param <T>
     * @return
     */
    public static <T> ServerResponse<T> createBySuccess() {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode());
    }

    public static <T> ServerResponse<T> createBySuccessMessage(String msg) {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), msg);
    }

    //调用ServerResponse(int status,T data)
    public static <T> ServerResponse<T> createBySuccess(T data) {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), data);
    }

    public static <T> ServerResponse<T> createBySuccess(String msg, T data) {
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(), msg, data);
    }

    /**
     * 失败提示
     * 失败不需要返回数据
     */
    public static <T> ServerResponse<T> createByError() {
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(), ResponseCode.ERROR.getDesc());

    }

    public static <T> ServerResponse<T> createByErrorMessage(String errorMsg) {
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(), errorMsg);

    }

    public static <T> ServerResponse<T> createByErrorCodeMessage(int errorCode, String errorMsg) {
        return new ServerResponse<T>(errorCode, errorMsg);

    }

}
